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The Pan American Games Olympic Villa skyline is reflected in Tijuca lake in Rio de Janeiro, Brazil, Thursday, Aug. 22, 2013. About 10 tons of dead fish have been discovered in the lake that also sits next to the terrain where the city's future Olympic park is being built for the 2016 Olympic Games. Environmental officials are investigating the fish kill. Biologists say it was likely caused by raw sewage making its way into the water, as has happened before. Rio has many problems with water pollu
/ AP